buying a good powersupply is tricky... there are so many BAD ones. Bad != low price.
Uber Gaming PSU checklist:
1. at least 22Amperage on the +12V rail?
2. at least 80% efficiency?
also, you really need to lap your heatsinks before mounting!!!
Get the best Heatsinks money can buy:
1. CPU,
http://www.newegg.com/Product/Produc...82E16835154001
2. GPU,
http://www.newegg.com/Product/Produc...82E16835109136